RAPAPORT... Christie's will offer a brooch by Graff containing a 107.46-carat, fancy-yellow diamond at its Geneva Magnificent Jewels auction.The piece, which features the brilliant-cut stone surrounded by white diamonds, is estimated to fetch up to CHF 3.3 million ($3.6 million) at the November 10 sale, Christie's said last week.A pair of earrings, each containing a pear-shaped white diamond as well as blue and pink diamonds, will also go up for auction. The set has a presale price tag of CHF 2.5 million to CHF 3.5 million ($2.8 million to $3.9 million).Other notable items are a rectangular step-cut, 28.88-carat, fancy-vivid-yellow diamond estimated at CHF 2.4 million to CHF 3.3 million ($2.6 million to $3.6 million), and a pear brilliant-cut, 3.96-carat, fancy-deep-blue diamond ring with a high valuation of CHF 2.4 million ($2.6 million).The sale will also showcase a number of jewels by popular designers such as Boivin, Boucheron, Bulgari, Cartier, JAR, and Van Cleef & Arpels. An emerald and diamond necklace by Bulgari has a high estimate of CHF 2.5 million ($2.8 million), while an Art Deco Tutti Frutti bracelet by Cartier is set to fetch up to CHF 1 million ($1.1 million)). Jewels from the estate of philanthropists Mireille and James Levy will also be up for auction. Image: The Graff brooch featuring the 107.46-carat yellow diamond. (Christie's)